Question

I’ve got a database with one field that contains a comma delimited list that I’d like to normalize. The field would look something like this…

16-BIT, 20 MHz, MICROPROCESSOR, PQFP100

It will not always have the same number of commas delimited items, however the only item I care about, and the one I want to pull out and normalize is always going to be the last one, in the case above ‘PQFP100’.

I think I understand the sql to get the column out and into another table, but I don’t know how to select only the PQFP100 part of it. Here’s what I have so far…

insert ignore into part_pkg (pkg_name)
select part_desc
from part_raw
group by pkg_name;

I think I need something on the ‘from part_raw’ part but don’t even know where to start 🙂

Hopefully this is clear enough. Thanks

Answer 1

if you select this:

select substring_index('16-BIT, 20 MHz, MICROPROCESSOR, PQFP100',',',-1)

you will get this:

PQFP100

So the insert statement must be something like this:

insert ignore into part_pkg (pkg_name)
select substring_index(part_desc',',',-1)
from part_raw
group by pkg_name;